The SPFramework is a collection of libraries that simplify the interaction with the SharePoint Object Model.
Currently it includes:

. Caml Queries: simplifies the creation and use of CAML Queries. Site Provisioning: a programmatic approach to provision Field, Content Types, List Templates, Lists and Sites. Entities: a generator of entities from deployed Content Types. Library: a collection of helper classes to interact with the SharePoint Object Model. Workflows: a set of helper classes to simplify interaction with Workflows. Tracing: a utility to easily Trace to ULS and Event logs